Home / 830,691.40-1,245,576.30-331,491.40

Finding the Fourth Proportional to 830,691.40, 1,245,576.30 and 331,491.40

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Solution

The fourth proportional to 830,691.40, 1,245,576.30 and 331,491.40 is: 497,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,691.40 : 1,245,576.30 = 331,491.40 : x
  2. Step 2: Convert to fraction form
    830,691.40/1,245,576.30 = 331,491.40/x
  3. Step 3: Cross multiply
    830,691.40x = 1,245,576.30 × 331,491.40
  4. Step 4: Simplify right side
    830,691.40x = 412,897,831,493.82
  5. Step 5: Solve for x
    x = 412,897,831,493.82/830,691.40
  6. Step 6: Final answer
    x = 497,053.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.